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When inserting the final level PTE, we check that we are not overflowing the page table (checking that pt_used does not exceed the size of the table). However, we have to allow for every other PTE to be pinned by a simultaneous removal thread (as on remove we bump the pt_used counter before adjusting the table). Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190821042044.7354-1-chris@chris-wilson.co.uk |
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